Authenticate

Au·then·ti·cate

Authenticate

v. t.

imp. & p. p. Authenticated; p. pr. & vb. n. Authenticating

  1. To render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit.
    The king serves only as a notary to authenticate the choice of judges.
  2. To prove authentic; to determine as real and true; as, to authenticate a portrait.